translate.hh

00001 // Copyright (C) 2001, 2002, 2003, 2004  EPITA Research and Development Laboratory
00002 //
00003 // This file is part of the Olena Library.  This library is free
00004 // software; you can redistribute it and/or modify it under the terms
00005 // of the GNU General Public License version 2 as published by the
00006 // Free Software Foundation.
00007 //
00008 // This library is distributed in the hope that it will be useful,
00009 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00010 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011 // General Public License for more details.
00012 //
00013 // You should have received a copy of the GNU General Public License
00014 // along with this library; see the file COPYING.  If not, write to
00015 // the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00016 // Boston, MA 02110-1301, USA.
00017 //
00018 // As a special exception, you may use this file as part of a free
00019 // software library without restriction.  Specifically, if other files
00020 // instantiate templates or use macros or inline functions from this
00021 // file, or you compile this file and link it with other files to
00022 // produce an executable, this file does not by itself cause the
00023 // resulting executable to be covered by the GNU General Public
00024 // License.  This exception does not however invalidate any other
00025 // reasons why the executable file might be covered by the GNU General
00026 // Public License.
00027 
00028 
00029 #ifndef OLENA_GEOM_TRANSLATE_HH
00030 # define OLENA_GEOM_TRANSLATE_HH
00031 
00032 # include <cmath>
00033 # include <iostream>
00034 
00035 # include <oln/core/image2d.hh>
00036 # include <oln/core/fpoint2d.hh>
00037 # include <oln/core/fdpoint2d.hh>
00038 
00039 namespace oln {
00040 
00041   namespace geom {
00042 
00043     template <class T, class F, class Exact>
00044     struct translate
00045     {
00046       typedef oln::image2d<T> im_type;
00047 
00048 
00049       image2d<T>
00050       operator()(const oln::image2d<T>& ima,
00051                  const fdpoint2d<F> dp,
00052                  fpoint2d_access<T, Exact> interp)
00053       {
00054         im_type res(ima.size());
00055         oln_iter_type(im_type) it(ima);
00056 
00057         for_all(it)
00058         {
00059           res[it] = interp(ima, fpoint2d<F>(it.row(), it.col()) - dp);
00060         }
00061         return res;
00062       }
00063     };
00064   }
00065 }
00066 
00067 
00068 
00069 
00070 
00071 #endif // !OLENA_GEOM_TRANSLATE_HH
00072 

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